Citric acid
Synonyms: Citric acid anhydrousC6H8O7 HOC(COOH)(CH2COOH)2Mr 192.13CAS Number [77-92-9]EC Number 201-069-1Beilstein Registry Number 782061Merck 14,2326RTECS GE7350000MDL Number MFCD00011669PubChem Substance ID 24856611Purity ≥ 99.5%Useful pH range of citric acid as a buffer 2.2 - 6.5pKa1 = 3.13pKa2 = 4.76pKa3 = 6.4
HR2-757 is titrated to pH 3.5 at 25 degrees Celsius using NaOHMeasured Conductivity Range: 28.7 - 33.3 mS/cm at 25°CMeasured Refractive Index Range: 1.36236 - 1.36329 at 20°C
Al ≤0.0005%As ≤0.00001%Ba ≤0.0005%Bi ≤0.0005%Ca ≤0.001%Cd ≤0.0005%Cl ≤0.0005%Co ≤0.0005%Cr ≤0.0005%Cu ≤0.0005%Fe ≤0.0005%K ≤0.005%Li ≤0.0005%Mg ≤0.0005%Mn ≤0.0005%Mo ≤0.0005%Na ≤0.005%Ni ≤0.0005%Oxalate (C2O4) ≤0.05%Pb ≤0.0005%PO4 ≤0.0005%SO4 ≤0.002%Sr ≤0.0005%Tartrate (C4H4O6) ≤0.2%Zn ≤0.0005%
